Dell PowerEdge 2550 Rack Installation Instructions page 31

To install the slide assemblies in the rack, perform the following steps:
Place the front of the template on the vertical rails at the front of the rack where you
1
want to install the system.
Ensure that the printing on the template identifies the side facing outward as the
template front.
Mark the rack's front vertical rails with a felt-tipped marker or place self-adhesive
2
masking tape where the system's upper and lower edges will be located (see
Figure 1-19).
Make a mark or place tape on the vertical rails next to the template's V-shaped notches
3
that are marked in red.
F i g u r e 1 - 2 0 . U s i n g t h e Te m p l a t e t o M a r k Ve r t i c a l R a i l s
2 U (3.5 inches) between
slide assemblies
(drawing is not to scale)
template
Ra c k In s ta l lati on Gui de
1-25